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hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
hal.structure.identifierModélisation, contrôle et calcul [MC2]
dc.contributor.authorBERGMANN, Michel
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
hal.structure.identifierModélisation, contrôle et calcul [MC2]
dc.contributor.authorBRUNEAU, Charles-Henri
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
hal.structure.identifierModélisation, contrôle et calcul [MC2]
dc.contributor.authorIOLLO, Angelo
dc.date.issued2009
dc.identifier.issn0021-9991
dc.description.abstractEnThis paper focuses on improving the stability as well as the approximation properties of Reduced Order Models (ROM) based on Proper Orthogonal Decomposition (POD). The ROM is obtained by seeking a solution belonging to the POD subspace and that at the same time minimizes the Navier-Stokes residuals. We propose a modified ROM that directly incorporates the pressure term in the model. The ROM is then stabilized making use of a method based on the fine scale equations. An improvement of the POD solution subspace is performed thanks to an hybrid method that couples direct numerical simulations and reduced order model simulations. The methods proposed are tested on the two-dimensional confined square cylinder wake flow in laminar regime.
dc.language.isoen
dc.publisherElsevier
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jcp.2008.09.024
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
dc.subject.halInformatique [cs]/Modélisation et simulation
bordeaux.journalJournal of Computational Physics
bordeaux.page516-538
bordeaux.volume228
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierinria-00338203
hal.version1
hal.popularnon
hal.audienceInternationale
dc.subject.itFunctional subspace improvement
dc.subject.itProper Orthogonal Decomposition
dc.subject.itReduced Order Model
dc.subject.itStabilization
hal.origin.linkhttps://hal.archives-ouvertes.fr//inria-00338203v1
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